Brice Lalonde, France’s ambassador for climate change, explains to Climate-Change.tv that heads of states can help salvage the climate change process and talks about how long-term goals like the G8’s 2050 target of reducing emissions by 80% compared to 1990 can be translated to intermediate targets. He speaks about the benefits of a carbon tax like the one proposed in France. Also see Brice Lalonde speaking from Copenhagen and Poznan.